Technical Specification of Niobium sheets
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TATA INSTITUTE OF FUNDAMENTAL RESEARCH Homi Bhabha Road, Colaba, Mumbai – 400 005. A Deemed University Telephone : +91-22-2278 2316/2886/2887/2888 Email : psmurthy@tifr.res.in Purchase Fax : +91-22-2280 4566 : sheela@tifr.res.in Website : www.tifr.res.in : madhuram@tifr.res.in : mayraj@tifr.res.in PUBLIC TENDER NO. : TFR/PD/IM9-268/PUB DUE DATE : 24.12.2009 TENDER FEE : Rs. 500/- COST OF TENDER : Approx. Rs.150 lakhs TYPE OF TENDER : TWO PART ------------------------------------------------------------------------------------ DESCRIPTION OF MATERIAL
------------------------------------------------------------------------------------- Closing time and date : 13.00 Hours on 24.12.2009 Tender will be open at : 14.00 Hours on 24.12.2009 Both Technical Bid (Part A) and Commercial Bid (Part B) to be submitted within the due date and time in separate envelopes and marked on top as either Part A or Part B. These two sealed envelopes should be further put in one Master Envelope superscribed with the Tender No., Due Date in Bold Letters. Please see attached sheet for conditions of tender. P. S. MURTHY Purchase Officer Ref.: TFR/PD/IM9-268/PUB
Table of Contents 1. Scope of the technical specification 2. Scope of the Tender 3. Eligibility criteria for the bidders 3.1 Qualified Manufacturers of the Material 3.2 Authorized Dealers of the Qualified Manufacturers of the Material 4. General conditions for tendering and contracting 4.1 Tender Procedure 4.1.1 Technical Questionnaire 4.1.2 Details of the original manufacturer and catalogue of the offered material. 4.1.3 Details of the handling agencies in India 4.1.4 Validity of offer 4.2 Purchase Order Execution 4.2.1 Purchase Order Distribution 4.2.2 Processing of Purchase Order by the Vendor 4.3 Minimum Order Quantity 4.4 Cost calculation for comparison purpose 5. Technical requirements 5.1 Material Designation and Grade 5.2 Applicable Documents 5.3 Properties and Testing 5.3.1 Chemical composition 5.3.2 Electrical requirements 5.3.3 Mechanical properties 5.3.4 Metallurgical Requirements 5.3.5 Surface Finish 5.4 Inspection and Testing 5.4.1 Chemical composition 5.4.2 Residual resitivity ratio 5.4.3 Mechanical measurements 5.4.4 Micrographs 5.4.5 Surface Finish 5.5 Tests Examination and Certification 5.5.1 Test reports 5.5.2 Inspection 6. Quantity 7. Delivery and acceptance 7.1 Delivery Terms 7.2 Delivery Schedule 7.3 Packing and Transport to TIFR 7.4 Acceptance 8. Mandatory Technical questionnaire Table A.1: General Information Table A.2: Technical Information Ref.: TFR/PD/IM9-268/PUB 1. SCOPE OF THE TECHNICAL SPECIFICATION This specification lists the technical requirements for supply of Niobium sheets as per dimensions and properties listed in this specification and conforming to ASTM B391, “Niobium and Niobium Ingot Alloys”, R04200vType 1, reactor grade unalloyed niobium with additional requirement of RR300 and overriding requirements as specified herein. 2. SCOPE OF THE TENDER
3. ELIGIBILITY CRITERIA FOR THE BIDDERS The only eligible bidders are as follows: 3.1 Qualified Manufacturers of the Material The material manufacturers are eligible to bid if they operate under a quality management system ISO 9001: 2000 with material manufacturing (Niobium) in the scope of the certificate. The bidder shall attach a certificate to this effect with their bid. Preferably, they shall have their own sales office in India. The bidder must have qualified for supply of niobium for construction of multicell SC resonators in any of the renowned accelerator lab like DESY, KEK, INFN, CERN, Fermilab, TRIUMF, Cornell, ANL, TJNAL. The bidder may be asked to submit a document in support. The material being offered shall be manufactured using the same equipment, process and control. Any bidder whose material has not been successfully used for manufacturing of multicell SC resonators shall not qualify to bid for this tender. Quotations from niobium manufacturers only shall be accepted. 3.2 Authorised Dealers of the Qualified Manufacturers of the Material A recent and valid authorization certificate from the qualified manufacturers for the supply of niobium sheets must be attached with the offer. Offers without valid authorization certificate will be rejected without any intimation to the bidder. 4. General Documentation for tendering and contracting Please refer to the commercial bidding documents for complete information. 4.1 Tender Procedure 4.1.1 Technical Questionnaire A mandatory technical questionnaire is attached with this Technical Specification (MANDATORY TECHNICAL QUESTIONNAIRE, Tables A1 and A2). The technical questionnaire has been prepared to eliminate correspondence with bidders for seeking clarifications on the inadequate/ incomplete/ missing information and / or for requesting mandatory documents required by the purchaser. The mandatory questionnaire shall be completely filled in, duly signed and stamped by the bidder on each page and submitted along with the bid. Offers received without fulfilling this condition will be considered as incomplete and will be rejected. Ref.: TFR/PD/IM9-268/PUB
Please specify the complete details of the original manufacturer of the offered material and give complete contact details (name, phone, email, web address, fax, postal address). It is mandatory to specify original manufacturer of the material. 4.1.3 Details of the handling agencies in India Please specify the complete details of the handling agencies of the offered materials and give complete contact details (name, phone, email, web address, fax, postal address). 4.1.4 Validity of offer Preferably, the offer shall be valid for 90 days. 4.2 Purchase Order Execution 4.2.1 Purchase Order Distribution In case, the order is placed on the authorized dealers of the qualified material manufacturers then a copy of the purchase order will be sent to the material manufacturer as well. 4.2.2 Processing of Purchase Order by the Vendor
The quantity shown in the article 6 only indicates the minimum requirements. If the quantity happens to be less than the “Minimum Order Quantity” (MOQ) of the material, then the qualified material manufacturers and their authorized dealers are requested to quote for MOQ. Purchaser reserves the right to place order for MOQ or the quantity mentioned in the article 6 depending on availability, economy and conformance to this specification. 4.4 Cost calculation for comparison purpose Since the order quantity may change due to conditions embedded in articles 4.3, the Cost Comparison of Tender (CST) will be made on the basis of landed cost of “one kg of weight” for each item. Ref.: TFR/PD/IM9-268/PUB
Material shall be Niobium sheets cold rolled & annealed as per ASTM B 391 & ASTM B 393 with additional and overriding requirements as specified herein. 5.2 Applicable Documents Technical supply conditions shall conform to, but not be limited to, the document’s list given below: Table1: Applicable Standards, Latest Edition
5.3 Properties and Testing 5.3.1 Chemical composition Each lot of annealed Nb sheet shall conform to the following requirements for chemical composition for RRR 300 quality:
All other metallic impurities should be < 30 ppm each. In addition, each niobium sheet (final product) shall conform to the following requirements for dissolved interstitial elements:
The method of measurement of chemical composition shall be according to Section 5.4.1 Ref.: TFR/PD/IM9-268/PUB
The final product shall have a measured Residual Resistivity Ratio (RRR) value as specified in article 6. This requirement overrides the chemical composition requirement in Section 5.3.1, since the combined contributions of the impurities as listed in the above table would produce an RRR value substantially below the required value. The method of measurement of the RRR value shall be specified in Section 5.4.2. 5.3.3 Mechanical properties The final product shall conform to the following mechanical properties at room temperature as per ASTM E8: The difference in yield strength and elongation in the longitudinal (rolling direction) and transverse directions shall be minimum possible and the difference shall be stated in the quotation. The purchaser reserves the right to use it as a selection criteria, in case, other properties are met in the offers. For the tensile measurement, the rate of strain shall not exceed 0.010 inch/inch minute through the 0.2% offset yield strength. The rate of strain may be increased to 0.05 inch/inchminute thereafter. The method of measurement shall be according to Section 5.4.3.
The final product shall be at least 95% recrystallized and shall exhibit uniform size and equiaxed grains that are predominantly ASTM #6 (0.045 mm) with no grains larger than ASTM #5 (0.064 mm) locally. The method of measurement shall be according to Section 5.4.4. 5.3.5 Surface Finish The material shall be delivered in fully annealed condition with an “as etched” surface (free of oxide inclusions, cracks, blisters or laminations), with both surfaces having a clean “metallic” looking finish (metallic blank) and a surface roughness Rt<15 µm. The delivered material shall be free of injurious internal or external imperfections of a nature that would interfere in the deep drawing operation of RF cavity components. Particular care should be taken in the final rolling and subsequent handling to avoid the inclusion and embedding of particles of foreign material in the surface of the sheets. The method of measurement shall be according to Section 5.4.5. 5.4 Inspection and Testing The tests listed below are the minimum required and are not intended to supplant any controls, examinations, inspections, or tests normally employed by the seller to assure the quality of the product. A minimum of two samples per sheet shall be taken from two sheets per each lot of Nb sheet covered by this specification. 5.4.1 Chemical composition The method of measurement of chemical composition shall be by x-ray emission spectroscopy (ASTM E902), spark source mass spectrometry (ASTM E304) or other instruments with demonstrated equal sensitivity and accuracy, including dc plasma spectroscopy, optical emission spectroscopy or inductively coupled plasma spectroscopy. 5.4.2 Residual Resistivity Ratio RRR is defined as the ratio of D.C. bulk electrical resistivity at 293K and at 4.2K when the material is in a normal, non-superconducting state. Samples for RRR measurement shall be approximately 2.0 mm x 5.0 mm x 50.0 mm in size. The high temperature measurement shall be made at 293 ± 1 K. The low temperature measurement may be made by one of two methods. It may be made above the critical temperature (9.2K) at say 10 K, in which case the measurement temperature must be recorded. Alternatively, the low temperature resistance measurement may be made at 4.2K, in which case the measurement must be made while the sample is in a magnetic field greater than 10,000G in order to assure that it is fully in the normal conducting state and not in a superconducting state. 5.4.3 Mechanical Measurements Measurements shall be performed in accordance with ASTM E8 to determine Yield strength, Tensile strength and Elongation. Both longitudinal (to the rolling direction) and transverse (perpendicular to rolling direction) sections shall be examined as described in the following paragraph. For the tensile measurements, the rate of strain shall not exceed 1%/minute through the 0.2% offset yield strength. The rate of strain may be increased 5%/minute thereafter. Hardness (HV) has to be measured after final annealing for each sheet. The grain size shall be measured in accordance with ASTM E112, Section 3.1.3. 5.4.4 Micrographs Photomicrographs shall be obtained as per ASTM Method E 883 as follows: Both throughthickness longitudinal (along rolling direction) and transverse (perpendicular to rolling direction) sections shall be prepared as per ASTM E3. One representative photomicrograph at X500 magnification per sample orientation (longitudinal and transverse) and one representative photomicrograph at X50 magnification per sample orientation shall be taken. 5.4.5 Surface Finish Inspection For the surface finish, both sides of each sheet must pass a 1X visual inspection as follows: Inspections must be performed with the naked eye or correction to 2020 vision, at a distance of no more than 10 inches and with the aid of a 100 Watt light source. Magnifying aids may be used to determine the following causes, any of which are cause for whole or part rejection: •Pores, indentations or "orange peeling". •Scratches deeper than .001 inch. •Dirt or grease deposits.
The seller shall maintain a documented quality assurance program that will insure that each item offered for acceptance or approval conforms to the requirements herein. A Quality Assurance plan must be submitted with the proposal and must be approved prior to the award of the contract. 5.5.1 Test Reports Each of the following tests shall be done. The reports of the tests shall be sent to the purchaser at the time of material shipment. 5.5.1.1 Chemical analysis ( ingot and final product); specific values per section 5.3.1. 5.5.1.2 Residual resistivity ratio; specific values per Section 5.3.2. 5.5.1.3 Mechanical properties, specific values per Section 5.3.3 5.5.1.4 Grain size; specific values per Section 5.3.4. 5.5.1.5 Surface Finish per Section 5.3.5 5.5.1.6 Micrographs per Section 5.4.3 5.5.2 Inspection TIFR reserves the right to have its technical or procurement representatives witness manufacturing steps, tests and inspections established under the seller's quality assurance program to demonstrate compliance with the specifications. Any information of a proprietary nature must be identified in the bid process. Ref.: TFR/PD/IM9-268/PUB
The dimensions and quantity of niobium sheets are mentioned in below. The sheet flatness shall be according to ASTM B708, 2% or better. Table 2: Quantity
7. Delivery and Acceptance 7.1 Delivery Terms 7.1.1 The Domestic Offers The offer shall only be made on F.O.S. (free on stores)TIFR, only. The excise and VAT shall be mentioned separately in a cost break up. Please note that excise duty exemption certificate cannot be issued for purchase of raw materials.
Preferably, the offer shall be made on the F.O.B. basis. 7.2 Delivery Schedule The items shall be delivered to TIFR premises within 6 months of placement of purchase order. Offers quoting more that 6 months’ delivery period would be considered after adding 2% of the offered cost for each completed month for performing cost comparison of the offers. Offers quoting more than 10 months of delivery period may not be considered. 7.3 Packing and Transport to TIFR 7.3.1 The material shall be coated on all sides by an adhesive PVC coating. Note that the PVC coating material should not contain any silicone. The material shall be individually wrapped or paper interleaved with nonabrasive, anti-tarnish paper to prevent surface damage. Wrapped sheets shall be packed for shipment in a way to prevent damage during normal hazards to shipment. 7.3.2 The material shall be delivered as packed at TIFR, Mumbai India. 7.4 Acceptance Supplier will sample two sheets from each lot. Two samples will be cut from each sheet. Supplier will test one sample for the required attributes and the other sample will be provided to TIFR for obtaining approval prior to the supply of the material. TIFR will accept the material on the basis of test certificates and samples test results. All documentation as per 5.5.1 should be submitted to TIFR. Pre-dispatch inspection will be carried out. An identification system shall be carried with material to provide crossreference to the test documentation. Ref.: TFR/PD/IM9-268/PUB 8. MANDATORY TECHNICAL QUESTIONNAIRE (TO BE FILLED IN BY THE BIDDER & SUBMITTED ALONGWITH THE OFFER)
Table A.1: General Information Qualification of the Material Manufacturer
Qualification of Authorized Dealers of the Qualified Manufacturers 
Delivery, Service and Warranty
Ref.: TFR/PD/IM9-268/PUB TableA.2: Technical Information
Signature: Name of Authorised Signatory: Stamp of the bidding firm: TATA INSTITUTE OF FUNDAMENTAL RESEARCH (Deemed University) National Centre of the Government of India for Nuclear Science and Mathematics HOMI BHABHA ROAD, COLABA, MUMBAI – 400 004 (PURCHASE SECTION) Terms and Conditions
- Up to maximum of 90% against shipment of the equipment/materials (through Letter of Credit) - Balance 10% of the order value will be released on receipt, installation, commissioning and acceptance of the equipment/machinery. In case any supplier wants advance payment for mobilization the same can be released on submission of bank guarantee for the equal amount valid till the date of shipment of the equipment/material. 16. As per CVC guidelines No Agency commission will be paid by TIFR PURCHASE OFFICER Yüklə 91,76 Kb. Dostları ilə paylaş:
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